>>What would suddenly cause a subclassed grid to
>>
>>1. start complaning about a perfectly valid dynamic backcolor expession and
>>
>>2. fail to refresh the controls in the grid -- that is the default refresh() behavior of the grid is not occuring.
>>
>>This started today in a grid that I have used for 6 months without problem. I have...
>>
>>1. Reinstalled VFP
>>2. Reinstalled the derived grid class from a backup
>>3. Reinstalled the derived grid class from an older backup
>>4. Pulled what little is left of my hair out...
>>
>>Nothing...
>>
>>Any insight would be a blessing.
>>
>>Thanks,
>
>Has the table that the grid is based on had it's structure changed?

Hi Fred,

Yes it had, but the problem turned out to be corruption in the form's .SCX.

Thanks for the idea

regards,